Logging boost control solenoid activity?

[Chris Wilson]

I think I need a smaller restrictor in the pressure line to my Delco boost control solenoid as I am told by my mapper that I am running out of duty cycle. I want to log the duty cycle for review after track activity. I am sure it's easy when you know which parameters equal duty cycle, but being new to this I can't figure out what, under "Boost Control" I need to log, and at what rate. Can someone help me out here please? ECU is M800. Wastegates are integral on a twin turbo RB26 Nissan engine. Thanks.

[MarkMc]

Log the Duty Cycle of the Auxiliary output that the Boost valve is conntcted to. Should log at 20Hz or slightly higher.

I always recommend people do some work on the dyno to work out what duty cycle equals roughtly what boost, especially if you want to eventually do closed loop boost control.

[Chris Wilson]

Thank you very much Mark, I was looking under the list of options for Boost Control logging, didn't think to look under auxiliary outputs I have it sussed now, thanks again.